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Finding the Fourth Proportional to 443,059.20, 664,156.80 and 253,324.80

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Solution

The fourth proportional to 443,059.20, 664,156.80 and 253,324.80 is: 379,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,059.20 : 664,156.80 = 253,324.80 : x
  2. Step 2: Convert to fraction form
    443,059.20/664,156.80 = 253,324.80/x
  3. Step 3: Cross multiply
    443,059.20x = 664,156.80 × 253,324.80
  4. Step 4: Simplify right side
    443,059.20x = 168,247,388,528.64
  5. Step 5: Solve for x
    x = 168,247,388,528.64/443,059.20
  6. Step 6: Final answer
    x = 379,740.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.